biodiversity Flashcards

1
Q

who coined the term biodiversity?

A

edward wilson

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2
Q

name the medicinal plant that grows in himalyan region in terms of potency and chemical tht the plant produces. what chemical does it produces?

A

rauwolfia vomitoria
reserpine

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3
Q

how many genetic strains of rice has and how many varieties of mango are present in india

A

50,000- rice
1000- mango

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4
Q

which ghats have greater amphibian species diversity ?

A

western ghats

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5
Q

who placed a species diversity at about 7 million

A

robert may

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6
Q

more than _ of all the species are animals whereas plants are no more than _%

A

70-a
22- p

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7
Q

which group among animals have the most number ofspecies which make up 70% of the total

A

insects

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8
Q

out of every 10 animal on this planet _ are insect

A

7

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9
Q

which group has the most no of species in the world more than the combined total of the species of fishes , ambhibians , reptiles and mammals

A

fungi

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10
Q

in vertebrates most no of species is of _ taxa and least of _

A

most- fishes
least- amphibians, mammals

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11
Q

in invertebrates the least no of species is of which taxa

A

crustaceans

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12
Q

among plants which taxa has least no of species

A

lichens

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13
Q

if we accept may’s estimates how many species have been discovered yet

A

22%

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14
Q

species diversity _ when we move from equator to poles

A

decreases

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15
Q

_ harbour more species than temperate and polar region

A

tropics

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16
Q

a forest in tropical region _ has upto _ times as many species of vascular plants as a forest of equal area in a temperate region like the midwest of the USA

A

EQUADOR
10

17
Q

the largely tropical ___ rain forest have greatest biodiversity on earth

A

amazon

18
Q

tropical environment unlike temperate are less _ and more _ and predictable

A

less seasonal and more constant

19
Q

who gave species are relationship

A

alexander von humboldt

20
Q

the graph of species are relationship is ?

A

rectangular hyperbola

21
Q

what is the logarithm equation of species are relation ship and what does z means in it

A

log s= log c + z log a
z is regression coefficient

22
Q

the value of lies between

A

0.1 to 0.2

23
Q

the slope for frugivorous and mammals in tropical forest in different countries is

A

1.15

24
Q

who found that plots with more species showed less year to year variation in total biomass

A

tilman

25
Q

increased diversity contributed to _ productivity, tilman

A

higher

26
Q

river poppet hypothesis was given by?

A

paul ehrlich

27
Q

name the forest which is lungs of the planet

A

amazon rain forest

28
Q

what is endemism

A

species confined to a region and not found anywhere else